Superheater for locomotives.



S. M. VAUGLAIN.

jig da l 000@00000 a, m H6 1J @00000900 f f Q. i 0

SUPERHEATER FOR LOGOMOTIVES. APPLIoATIoN HL'BD 1mm, 1905.

1HE Nafams Prsns co.. wasnmcron, n. c.

, S. M. VAUCLAIN. SUPERHBATBR ron LooOMoTIvEs. APPLICATION BILBD DEO. '7, 1905.

922,365, Patented May 18, 1909.

3 SHEETS-SHEET 2.

TH: NaRRls AIL-:sas cc., wnsnmcrorl, :1.a

l S. M. ET AUCLAIN. l SUPBRHEATBR PoR LocoMo'rrvEs.

` APPLICATION FILED 15110.?, 1905. 92g365, Patented May 18, 1909.

3 SHEETS-SHEET 3.

ms Namus PETER; co', wAsHmawn, u, c.

UNITED SAMUEL M. vAUoLAIN, or PHILADELPHIA, PENNSYLVANIA, ASsIeNoR To BUHNHAM, WILLIAMS a COMPANY, or PHILADELPHIA, PENNSYLVANIA, A FIRM.

SUPERHEATER FOR LOCOMOTIVES;

Specication of Letters Patent.

Patented May 1e', 1909.

Application led December 7, 1905. Serial No. 290,796.

To all whom it may concern.'

Be it known that I, SAMUEL M. VAUCLAIN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Superheaters for Locomotives, of which the following is a specification.

The main object of my invention is to provide a superheater for locomotives which will be entirely independent of the boiler and which will be mounted in the smoke box of the locomotive. p

A further object of the invention isto rovide means whereby the products of comliustion can either be deflected to or from the superheater.

These objects I attain in the following manner, reference being had to the accompanying drawings, in which Figure 1, is a transverse sectional view on the line 1 1, Fig. 2, illustrating my irnproved superheater as applied to a locomotive boiler; Fig. 2, is a longitudinal sectional view on the line 2 2, Fig. 1 Fig. 3, is a sectional plan view; Fig. 4, is a detached sectional plan view showing the deflecting plates; and Fig. 5, is a section on the line .6*5, Fig. 1. Y

A is the boiler of the locomotive having the ordinary tubes a, a.

B is the smoke box of the locomotive situated in front of theboiler and having the stack l) of the usual form.

C is the exhaust nozzle from the cylinders and is in direct line with the stack t.'

C iS a petticoat pipe of the ordinary construction, so that the exhaust steam will pass into the pipe from the bottom and create a draft, drawing the products of combustion to the chimney.

c is a steam pipe leading from the boiler.

Arranged on each side of the smoke box B are superheater sections D, D, each consisting of upper and lower headers D, D2, respectively, and connecting tubes d, curved, as shown, so that each superheater Section is close to the casing of the smoke box. The tubes d are attachedto tube plates d in each of the headers and the cap plates d2 of each header are detachable so that access can be had to the tubes.

It will be noticed, in referring to Fig. 3, that each superheater section is made in three parts 1, 2, 3, and there is a partition d3,

shown by dotted lines in Fig. 3 and full lines l lin Fig. 5, in each upperheaderD ;'and there -is apartition dtin each lower header, as indicated by dotted lines in Fig. 2.

On the cap of each header D is a neck e which communicates with aT-pipe E coupled to the live steam pipe c from the boiler. The couplings between this pipe E and the steam pipes and the necks are ground so that the joints will be steam tight. The necks c connect with the rear end of the headers D of the superheater and necks f, f communicate with the opposite ends of the sections D2; these necks are coupled to the headers and to the steam supply pipes leading to the cylinders of the locomotive by joints similar to those shown in connection with the necks c, e and pipe E. Thus it will be seen that the steam as it comes from the boiler passes down through the Section 1. of the-superheaters, up the section 2 and down the Section 3 to the steam pipes F leading to the cylinders, thus there is Suhicient travel to properly superl heat the steam.

vIn some instances the superheaters may not be provided with the partitions cl3, d, so that the steam will pass directly fromthe steam inlet pipe through the superheaters direct to the cylinders. f

It will be seen that the pipes of 'the sections ofthe superheater are indirect line with the outer tubes of the boiler; but the central tubes are open free of the superheater, and in order that the entire products of combustion may be directed to the superheaters I provide deflectors which are movable so as to direct the products of combustionY either to the superheaters or away from the superheaters, as desired, so that when the locomotive is standing in a round house or at a terminal the deflectors can be so adjusted that the major portion of the products of combustion can pass clear of the superheaters directly to the stack, thus the supere heaters will in no way interfere with the draft of the boiler, but when the locomotive is under way the deflectors can be so adjusted that the greater portion of the products of combustion will pass in contact with the pipes of the superheateI-,the exhaustbeing sufficient to prevent the su erheater interfering with' the draft of the ocomotive.

In carrying out my invention I provide two longitudinal plates I, I spaced a distance apart equal to about the base of the petticoat pipe C', and the upper and lower edges of these plates are attached to headers YD and D2 of the superheater at i, i', respectively. At the rear edges of the plates I, l are two vertical shafts J, J to which are attached the deflector plates 1C These deflector Y plates are of such height that they will pass clear of the T-pipe E. l I

The two shafts J, J are mounted in suitable bearings j and the shaft J has,\at its upper end, a lever K, the long arm 7c of the lever being connected to a rod L leading to the cab ofthe locomotive, and the short arm 7c is connected by a link 7a2 to an arm 7c3 on the shaft J so that on operating the rod L both shafts J, J will turn in their bearings, causingthe deiiector plates I to move either to the'position shown by full lines in Fig. ll, or that' shown by dotted lines in Fig. `3.

, ifihen the deflector lates are in the posi-l tion shown in Fig. 3, t ien all the products of combustion will be directed to the superheaters; but when the plates are shifted to the position shown in Fig. 4, then the greaterv portion. of the products of combustion pass directly to the stack without coming in direct contact with the pipes of the sup'erheater. Thus it will be seen that by my invention l. can mount a superheater in the fire box of a V locometive already constructed without in any way interfering with the boiler, and can so arrange the superheater that a consider.- able surface will be subjected to lthe direct action of the products of combustion; andl A further that the product s of combustion can be deflected to or from the superheater at the will of the .engineer in the cabiof the locomotive.

lt will be noticed that one section of the superheater is connected to the cylinders on one side of the locomotive andthat the other section communicates with the cylinders on the'opposite side of the locomotive, so that the steam for the cylinders is divided before it passes to the superheaters, the steam intended for one cylinder passing through one section and the steam for the other cylinder passing to the other section.

I claim:

1. The combination with a boiler having a smoke box, of a stack connected to the smoke box, a superheater made in two sections respectively mounted on opposite sides of the smoke box, with deflecting means mounted between said sections, anda device for adjusting said deflecting means either to direct all of the products .of combustion through the superheater or to force the products Vof combustion from the central tubes of thc boilcr to Pass dircctliT to thc stack. while compelling the gases `from the remaining tubes t`o pass through the superheater,

2. The combination in a locomotive, of a boiler ,and c Smoke box. a supcrhcatcr mecc in two sections and mounted in thc Smokc box, one section being situated on one side i of the smoke box and the other on the o poheater, and means for operating the deflectors.

3. rihe combination in a locomotive, of a boiler and a smoke box, a stack communieating with the smoke box, a superheater mounted on one side of the smoke box and the other section being mounted on the opposite side, xed plates verticallyV arranged between the two sections of the superheater, andtwo vertically arranged pivoted plates forming a continuation of the fixed plates,

4l The combination in a locomotive, of a boiler and a smoke box, a stack communieating with the smoke box,- an exhaust nozzle in line with the stack,'a petticoat pipe mounted between the exhaust nozzle and the stack, a superheater mounted within the smoke box'and made in two sections, one section being on one side of the petticoat pipe and theother on the opposite side thereof, the upper end of the superheater being connected to the boiler and Vthe lower end being connected tov the ipes leading to the cylinders, and vertica lyV arranged iixedY plates and pivoted plates forming 'deflectors, with means forfmoving the pivoted plates so as to direct the products of combustion toward the sections of the superheater.

ing a boiler, of a smoke box, asuper-heater mounted in the smoke box, said superheater being made in two sections, each section consisting of headers and curved tubes, one section being mounted on one, side Vof the smoke box and ,the other section being mounted on the opposite side of the smoke box, the upper headers ol' the superheater being connected to the boiler and the lower headers connected to the cylinders, 4an rexhaust pipe, a stack, and a petticoat pipe betweenthe two, two longitudinal deiiecting plates attached to the headers of the superheater and extending rearwardly from eachside of the petticoat pipe, two vertical shafts,two defiector plates mounted on said shafts, means by which the two shafts are connected, and operating means within reachof lthe engineer so thatthe pivoted deflector plates can be adjusted in position to deflect the products of combustion to or from the pipes ol the superheater.

6. The combination in a locomotive having a boiler, of a smoke bo x,two superheater sections mounted in the smoke box, one on one side of the smoke box and the other on the opposite side, said sections being connected to the boiler and to the cylinders of the locomotive, fixed longitudinal deflecting plates, two vertical shafts, plates mounted on said shafts, a lever mounted on one vshal't having an arm to which a rod is connected and. means for operating the`V pivoted plates.V

5. The combination in va locomotive havjV sito side, with vertically arranged piveted deY Y flcctors between thc two Sections of thc Super- Vmade in two sections, one section being Y leading to a point within reach of the engineer, a link connected to the other arm, and an arm on the other shaft connected to said link, so that the two movable deflecting plates can be turned to direct the products of combustion to or from the superheater.

7. The combination with a boiler having a smoke box, of two pairs of companion headers connected by heating tubes and extending lengthwise of the smoke box for substantially the full length thereof, one member of each pair being located in the upper part of the box, and the other member' of each pair being located in the lower part thereof, said heating tubes conforming approximately to the curvature of the sides of the smoke box and connecting the upper and lower headers of each pair respectively, separate plates forming with the headers of each pair and the walls of the smoke box inclosing chambers for the two sets of connecting tubes, and means for varying the fiow of heated gases from the boiler tubes through said chambers.

8. The combination of a smoke box of a locomotive boiler having iire tubes entering the same, means for governing the flow of the products of combustion from said fire tubes including two partitions extending longitudinally of the smoke box and dividing it into three passages, deilecting means mounted adjacent to the ends of the hre tubes so as to direct the products of combustion to two of said passages at will, independent superheating tubes in said two passages, and a smoke stack communicating with the third passage and with the front ends of the other two passages.

9. The combination of a smoke box of a locomotive, means for directing the products of combustion including two longitudinal partitions less in length than the smoke box and dividing it into three parts forming two side passages and a central passage, a smoke stack and a nozzle communicating with the central passage, superheating tubes in the side passages, and transverse defiecting means for directing the products of combustion from the boiler tubes to the side passages, said products of combustion passing around the forward end of the longitudinal partitions and into the central passage.

l0. The combination with a tubular steam boiler, of saturatedV steam headers iixed to the upper portion of the smoke box and communicating with the main steam supply pipe of the boiler, superheated steam headers fixed to the lower portion of the smoke box and communicating with the branch steam pipes leading to the engine cylinders, sets of superheater pipes located on opposite sides of the smoke box and connecting the saturated and superheated steam headers on each side thereof, and a discharge casing fixed in the space between the opposite sets of superheater pipes and extending from the exhaust pipe to the` lower opening of the stack.

11. The combination with a boiler having a smoke box, of means forming a passage at each side of the smoke box for conducting the gases entering the same longitudinally thereof, upper and lower headers, a set of heating tubes in each of said passages connecting the upper and lower headers, and exit means from the space of said smoke box between said passages for gases which have traversed them.

12. rlhe combination with a locomotive smoke box of two sets of longitudinally extending headers therein, each set including an upper and a lower header, a series of tubes connecting each upper header with its lower header, and deflector plates respectively connecting the upper with the lower headers so as to cooperate with said headers and divide the smoke box into three pas-V sages. f

13. The combination with the smoke box of a locomotive of a superheater therein consisting of an upper and a lower header, each header beingformed of a cap plate and a tube plate, and tubes connecting the tube plates of the headers, each of said cap plates being hollow and having deflecting partitions placed within it to extend adjacent to the surface of the tube plate.

14. The combination with the smoke box of a locomotive of a superheater therein, an exhaust nozzle, and a petticoat pipe, said pipe having its upper portion braced to a part of the superheater and being connected at its lower portion to the exhaust nozzle.

ln testimony whereof, l have signed my name to this specification, in the presence of two subscribing witnesses.

SAMUEL M. VAUCLAlN. Witnesses:

JAS. H. M. HAYEs, WM. DE KRAFFT. 

